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  1. #include <stdio.h>
  2. #include <stdbool.h>
  3.  
  4. int main ()
  5. {
  6. 	int p, i, primes[50], primeIndex = 2;
  7. 	bool isPrime;
  8.  
  9. 	primes[0] = 2;
  10. 	primes[1] = 3;
  11.  
  12. 	for ( p = 5;  p<= 50; p = p + 2 )
  13. 	{isPrime = true;
  14.  
  15. 	for ( i = 1;  isPrime  && p / primes[i] >= primes[i]; ++i )
  16. 		if ( p % primes[i] == 0 )
  17. 			isPrime = false;
  18.  
  19. 		if ( isPrime == true )
  20. 		{ primes[primeIndex] = p;
  21. 		  ++primeIndex;	
  22.  
  23. 		}
  24.  
  25. 	}
  26.  
  27. 	for ( i = 0;  i < primeIndex;  ++i )
  28. 		printf ("%i  ", primes[i]);
  29.  
  30. 	printf ("\n");
  31.  
  32. 	return (0);
  33.  
  34.  
  35. }
Success #stdin #stdout 0.01s 5304KB
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https://ideone.com/xhDYxr
language:
C (clang 8.0)
created:
22 hours ago
visibility:
public

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